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85 Cards in this Set
- Front
- Back
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Percent of Earth covered by oceans
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71% |
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Name 3 main causes of currents
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wind, Earth's rotation, and solar heating |
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Identify closest current by name and flow direction
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California current goes down to California |
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Define El Niño and describe its impact on the ecosystems |
Impact-weather extremes (flooding, droughts) Cold water plants and animals die off, high end consumers starve |
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Main causes of ocean waves
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sometimes earthquakes (tsunamis) |
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define sneaker waves
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large unexpected waves that rush on shore faster and farther than previous waves
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warning signs sneaker waves
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long time between breakers, very strong ebb |
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impacts of sneaker waves
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knock people down/off rocks, spins people under logs, pulls people out to sea |
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guidelines of sneaker waves
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watch ocean when near surf and avoid logs |
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name main cause of tides |
Mostly gravitational pull of Moon |
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frequency of tides
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every 12 hours (12.4)
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Tidal range of mid ocean
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About 1 feet Hawaii |
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Tidal range of continental shores
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6-8 feet Newport Oregon |
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Tidal range long, narrow bays
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Define long shore current
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near-shore current that flows parallel to shore
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Cause of long shore
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waves striking beach at an angle |
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define rip currents
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high-velocity currents flowing seaward from shore |
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causes of rip currents
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long shore current meeting a pier, headland, or jetty |
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European beach grass
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blood worm |
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beach hoppers eat seaweed |
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mole crab crustaceans without pincers |
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smooth bay shrimp isopod parasite on gill chamber |
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mysid shrimp carry young under thorax (like an opossum) |
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western snowy plover solitary dry sand |
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sanderlings social |
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how are hollows and rock sculptures in the rocky shoreline were created
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unequal wave erosion |
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sea cliff |
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sea cave |
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headland
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sea stack |
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sea urchin |
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test (skeleton of sea urchin) |
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ochre sea star |
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sunflower star |
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giant green anemone |
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aggregating sea anemone
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piddock clam
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California mussel |
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black turban snail |
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keyhole limpet |
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lined chiton |
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black katy chiton |
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gumboot chiton |
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giant pacific octopus |
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purple shore crab |
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porcelain crab |
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kelp crab |
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rock crab |
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hermit crab |
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acorn barnacle |
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goose neck barnacle |
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sculpin |
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black prickleback |
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black oyster catcher |
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common murres |
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harbor seal |
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black pine |
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rockweed |
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sugar wrack |
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encrusting coralline algae |
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articulated coralline algae |
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sea lettuce |
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oar weed |
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feather boa kelp |
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winged kelp |
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surf grass |
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define estuary and describe its significance to the marine ecosystem
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-protective nursery for the young of many crustaceans and fish |
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eelgrass spreads with rhizomes |
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Dungeness crab |
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gunnel |
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flatfish eye migrates during development |
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sea gull |
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great blue heron |
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cormorant |
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pigeon guillemot |
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California sea lion male and female |
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bull kelp (gas bladder=float) |
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sea nettle toxic venom causes burns and blisters |
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by-the-wind sailors venom harmless to humans |
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moon jellies mild venom causes rash or itch |
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sea otter |
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killer whale |
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gray whale |
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